Planning a trip to Japan? A Japan eSIM is the simplest way to stay online from the moment you land at Narita or Kansai — for navigating Tokyo’s train maze, translating menus, and sharing every neon-lit street. No roaming bills, no SIM-card kiosks to hunt down.
Which networks does the Japan eSIM use?
Turnaa’s Japan eSIM connects to NTT docomo, Rakuten Mobile, KDDI/au (5G where available), automatically choosing the strongest available signal — so you get reliable data without changing your number.
How much data do I need?
- Light use (maps, messaging, email): 1–3 GB for a week.
- Regular use (social, browsing, some streaming): 5–10 GB.
- Heavy use or longer stays: an unlimited daily plan.
Japan plans start at $2.99, with 29 options to choose from.
Local tip
Coverage in Japan is excellent — you’ll have a strong signal across cities and even on the shinkansen bullet trains. Download an offline map and a translation app before you go, then let your eSIM keep them updated on the move.
How to set up your Japan eSIM
- Pick a plan and check out — your QR code is emailed in seconds.
- Open Settings › Cellular › Add eSIM and scan the QR (or tap “Install on this iPhone” on iOS 17.4+).
- Set it as your data line — you are online.
Tip: install it before you fly (you need internet to set it up), then switch it on when you land.
